332354 + Interview Questions in Secondary School in Math

1.	X-4/7-x+4/5=x+3/7 verify using the formulae L.H.S=R.H.S
Answer» Answer: here is your two different answers coz i didnt understand that if we have to verify or find the value so THATS why there are both verification and valueing Step-by-step explanation: if you WANT to verify x-4/7-x+4/5=x+3/7 x-x-4/7+4/5=x+3/7 -4/7+4/5=x+3/7 (-20/35)+(28/35)=x+3/7 -8/35is not EQUALS to x+3/7 if you want to find the value x-4/7-x+4/5=x+3/7 x-x-x=3/7+4/7-4/5 -x=7/7-(4/5) -x=1-(4/5) -x=1/5 x=-1/5

1.

X-4/7-x+4/5=x+3/7 verify using the formulae L.H.S=R.H.S

Answer»

Answer:

here is your two different answers coz i didnt understand that if we have to verify or find the value

so THATS why there are both verification and valueing

Step-by-step explanation:

if you WANT to verify

x-4/7-x+4/5=x+3/7

x-x-4/7+4/5=x+3/7

-4/7+4/5=x+3/7

(-20/35)+(28/35)=x+3/7

-8/35is not EQUALS to x+3/7

if you want to find the value

x-4/7-x+4/5=x+3/7

x-x-x=3/7+4/7-4/5

-x=7/7-(4/5)

-x=1-(4/5)

-x=1/5

x=-1/5

Discussion

2.	A retailer purchases a fan for 1600 from a wholesaler and sells it to aconsumer at 10% profit. If the sales are intrastate and the rate of GST is12% find the tax paid by the retailer to the central government.
Answer» Answer: plz MUJHE BRAINLIST MARK kr do bhut zarori H plz plz Step-by-step EXPLANATION:

2.

A retailer purchases a fan for 1600 from a wholesaler and sells it to aconsumer at 10% profit. If the sales are intrastate and the rate of GST is12% find the tax paid by the retailer to the central government.

Answer»

Answer:

plz MUJHE BRAINLIST MARK kr do bhut zarori H

plz plz

Step-by-step EXPLANATION:

Discussion

3.	In agarden75 A mango, 90 lemos,120 orangeno of treesis equal to noof row. find the minimum no. of rows
Answer» ANSWER: ADD all the THREE and DIVIDE the answer with 2 that is the answer

3.

In agarden75 A mango, 90 lemos,120 orangeno of treesis equal to noof row. find the minimum no. of rows

Answer»

ANSWER:

ADD all the THREE and DIVIDE the answer with 2 that is the answer

Discussion

4.	If x2+1/x2=83 find the value of x^2 − 1/x ^2answers is 9
Answer» Answer: it is GIVEN in your book page no. 145 yes

4.

If x2+1/x2=83 find the value of x^2 − 1/x ^2answers is 9

Answer»

Answer:

it is GIVEN in your book page no. 145 yes

Discussion

5.	Find the amount and the compound interest on ₹15000 for 2 years at 8%per annum
Answer» ANSWER: this is the CORRECT answer

5.

Find the amount and the compound interest on ₹15000 for 2 years at 8%per annum

Answer»

ANSWER:

this is the CORRECT answer

Discussion

6.	Reduce to the standard form 6/9
Answer» Answer: 2/3 Step-by-step explanation: BCZ numerator and DENOMINATOR divided by 3

6.

Reduce to the standard form 6/9

Answer»

Answer:

2/3

Step-by-step explanation:

BCZ numerator and DENOMINATOR divided by 3

Discussion

7.	A movie finished at 1 pm. If the movie took 1 hr 30 min, at what time did it start?
Answer» ANSWER: MOVIE was STARTED at 11:30 am please MARK my answer BRANLIEST

7.

A movie finished at 1 pm. If the movie took 1 hr 30 min, at what time did it start?

Answer»

ANSWER:

MOVIE was STARTED at 11:30 am

please MARK my answer BRANLIEST

Discussion

8.	Root 13 nikala root ma method
Answer» Step-by-step explanation: 3.606 is the UNDEROOT of 13

8.

Root 13 nikala root ma method

Answer»

Step-by-step explanation:

3.606 is the UNDEROOT of 13

Discussion

9.	Evaluate the following either by direct method or by using a number line 8-(-2)-3)
Answer» Answer: 48 Step-by-step explanation: 8×(-2)-3) 8×-2×-3 -16×-3 48 hope it helps u if YES mark as brainlest

9.

Evaluate the following either by direct method or by using a number line 8-(-2)-3)

Answer»

Answer:

48

Step-by-step explanation:

8×(-2)-3)

8×-2×-3

-16×-3

48

hope it helps u

if YES mark as brainlest

Discussion

10.	Is (root x-1 ) a polynomial ? Why?
Answer» ANSWER: No, this is not a polynomial expression Step-by-step EXPLANATION: because the variable is in ROOT form

10.

Is (root x-1 ) a polynomial ? Why?

Answer»

ANSWER:

No,

this is not a polynomial expression

Step-by-step EXPLANATION:

because the variable is in ROOT form

Discussion

11.	टैक्सी ड्राइवर चार्जेस रुपीस 10 पॉइंट 5 किलोमीटर हाउ मच हाउ मच विल सी क्लास फॉर द जर्नी ऑफ 96.5 किलोमीटर
Answer» Answer: GIVEN: 10 points PER 5 km so, 10/5=2 per 1 km *so 96.52= 193 points Hope It Helps !!**

11.

टैक्सी ड्राइवर चार्जेस रुपीस 10 पॉइंट 5 किलोमीटर हाउ मच हाउ मच विल सी क्लास फॉर द जर्नी ऑफ 96.5 किलोमीटर

Answer»

Answer:

GIVEN: 10 points PER 5 km

so, 10/5=2 per 1 km

so 96.5*2= 193 points

Hope It Helps !!

Discussion

12.	A²+b²-64+2ab+16b+16a is___________in fill in the blank
Answer» ANSWER: this LOOKS LIKE the EXPANTION of (x+y+z)² it ISTHE expantion of this (a+b+8)²

12.

A²+b²-64+2ab+16b+16a is___________in fill in the blank

Answer»

ANSWER:

this LOOKS LIKE the EXPANTION of (x+y+z)²

it ISTHE expantion of this (a+b+8)²

Discussion

13.	Two lines AB and CD are cut by a transversal PQ at point o and m respectively and angle POA is 110 degree. Find all the angles formed at point m.
Answer» ANSWER: I have SOLVE the PROBLEM. HOPE it HELPS

13.

Two lines AB and CD are cut by a transversal PQ at point o and m respectively and angle POA is 110 degree. Find all the angles formed at point m.

Answer»

ANSWER:

I have SOLVE the PROBLEM. HOPE it HELPS

Discussion

14.	Find the zeroes of p(x)=(x²+4)(x-3)
Answer» PLS MARK as BRAINLIEST ANSWER

Discussion

15.	Find the reminder 9x cube-3xsquare +x-5 is divided by x-2/3
Answer» Step-by-step explanation: 65 is the ANSWER. PLEASE MARK my answer as the BRAINLIST answer.

15.

Find the reminder 9x cube-3xsquare +x-5 is divided by x-2/3

Answer»

Step-by-step explanation:

65 is the ANSWER.

PLEASE MARK my answer as the BRAINLIST answer.

Discussion

16.	Find root 8 of 6 decimal places
Answer» 2.828427 is the ANSWER for ROOT 8

Discussion

17.	If 9x ( ) = ( ) then ( ) is a common mulitplies of 9 and ( ) is the statement true or false? How do you know?
Answer» ANSWER: false Step-by-step EXPLANATION: the answer is a MULTIPLE of 9 i.e 3,6,9 it is not a BRACKET

17.

If 9x ( ) = ( ) then ( ) is a common mulitplies of 9 and ( ) is the statement true or false? How do you know?

Answer»

ANSWER:

false

Step-by-step EXPLANATION:

the answer is a MULTIPLE of 9 i.e 3,6,9

it is not a BRACKET

Discussion

18.	Name the property that is reflected in the form of expression 5/-11×-11/5=1
Answer» ANSWER: The EXISTENCE of MULTIPLICATIVE inverse Hope this HELPS you..

18.

Name the property that is reflected in the form of expression 5/-11×-11/5=1

Answer»

ANSWER:

The EXISTENCE of MULTIPLICATIVE inverse

Hope this HELPS you..

Discussion

19.	If cos theta minus sin theta upon cos theta + sin theta equals to 1 minus root 3 upon 1 + root 3 then theta is
Answer» Answer: Step-by-step explanatio dav PUBLIC SCHOOL CLASS 7th SST l-9 map skills answers

19.

If cos theta minus sin theta upon cos theta + sin theta equals to 1 minus root 3 upon 1 + root 3 then theta is

Answer»

Answer:

Step-by-step explanatio

dav PUBLIC SCHOOL CLASS 7th SST l-9 map skills answers

Discussion

20.	Rationalize the denominator:5/3√5
Answer» HOPE this HELPS you...

20.

Rationalize the denominator:5/3√5

Answer»

HOPE this HELPS you...

Discussion

21.	Let R1 and R2 be the remainder when polynomial p(x) = x^3 + x^2-5kx-7g(x) =x^3+kx^2-12x+6 are divided by x+1 and x-2 . find k if 2r , -r = 10(7/3)
Answer» Answer not interested Step-by-step EXPLANATION

21.

Let R1 and R2 be the remainder when polynomial p(x) = x^3 + x^2-5kx-7g(x) =x^3+kx^2-12x+6 are divided by x+1 and x-2 . find k if 2r , -r = 10(7/3)

Answer»

Answer

not interested

Step-by-step EXPLANATION

Discussion

22.	At which point do the line 2x+3y=12 meets on y axis
Answer» Hi, Here is your answer Given: Equation of the line=2x+3y=12 To Find: The point the line touches the y axis Solution: Since the point is on the y axis, X intercept=0 The point is(0,y) SUBSTITUTE the value of x in the given equation of the line 2(0)+3y=12 y=4 Hence the point on the y axis which COINCIDES with the line 2x+3y=12=(0,4) HOPE this helps you.

22.

At which point do the line 2x+3y=12 meets on y axis

Answer»

Hi,

Here is your answer

Given:

Equation of the line=2x+3y=12

To Find:

The point the line touches the y axis

Solution:

Since the point is on the y axis, X intercept=0

The point is(0,y)

SUBSTITUTE the value of x in the given equation of the line

2(0)+3y=12

y=4

Hence the point on the y axis which COINCIDES with the line 2x+3y=12=(0,4)

HOPE this helps you.

Discussion

23.	Mother said to the child. To morrow. I will takeyou do the Park (indirect speech)
Answer» Answer: mother : " tomorrow i will take you to the PARK " is this what u R COMING to ask ?? if it is helping you MARK as BRAINLIEST

23.

Mother said to the child. To morrow. I will takeyou do the Park (indirect speech)

Answer»

Answer:

mother : " tomorrow i will take you to the PARK "

is this what u R COMING to ask ??

if it is helping you MARK as BRAINLIEST

Discussion

24.	1.એક રમતમાં એક પાંચ રૂપિયાના સિક્કાને 3 વાર ઉછાળવામાં આવે છે અને તેના પરિમામ દરેક વખતે નોંધવાના છે. જોતમામ વખત ઉછાળતાં સરખું પરિણામ મળે એટલે કે ત્રણ છાપ અથવા ત્રણ કાંય તો કરીમ રમત જીતી જાય છે અનેઅન્યયા હારે છે. તો કરીમ રમત જીતે તેની સંભાવનાની ગણતરી કરો.
Answer» ANSWER: एक पांच रुपये के सिक्के को एक खेल में 3 बार उछाला जाता है और इसकी परिधि को हर बार रिकॉर्ड किया जाता है। अगर एक ही परिणाम प्राप्त करने के लिए हर समय बाउंस करें यानी तीन इंप्रेशन या तीन कानिस करीम गेम जीतता है और अन्य. Thanks Step-by-step EXPLANATION: ___❤️MARK BRAINLIST❤️___

24.

1.એક રમતમાં એક પાંચ રૂપિયાના સિક્કાને 3 વાર ઉછાળવામાં આવે છે અને તેના પરિમામ દરેક વખતે નોંધવાના છે. જોતમામ વખત ઉછાળતાં સરખું પરિણામ મળે એટલે કે ત્રણ છાપ અથવા ત્રણ કાંય તો કરીમ રમત જીતી જાય છે અનેઅન્યયા હારે છે. તો કરીમ રમત જીતે તેની સંભાવનાની ગણતરી કરો.

Answer»

ANSWER:

एक पांच रुपये के सिक्के को एक खेल में 3 बार उछाला जाता है और इसकी परिधि को हर बार रिकॉर्ड किया जाता है। अगर

एक ही परिणाम प्राप्त करने के लिए हर समय बाउंस करें यानी तीन इंप्रेशन या तीन कानिस करीम गेम जीतता है और

अन्य. Thanks

Step-by-step EXPLANATION:

_❤️MARK BRAINLIST❤️_

Discussion

25.	Solve the following pair of linear equations : 152x-378y=-74 and -378x+152y=-694
Answer» ANSWER: 378x is the answer for your QUESTION DEAR FRIEND

25.

Solve the following pair of linear equations : 152x-378y=-74 and -378x+152y=-694

Answer»

ANSWER:

378x is the answer for your QUESTION DEAR FRIEND

Discussion

26.	What is the value of k if the roots of 3x2-6x+k=0 are equal and real
Answer» Answer: 6 or 0 Step-by-step EXPLANATION: if x=0then k=0 ifx=1then k=6

26.

What is the value of k if the roots of 3x2-6x+k=0 are equal and real

Answer»

Answer:

6 or 0

Step-by-step EXPLANATION:

if x=0then k=0

ifx=1then k=6

Discussion

27.	Find the value of 1/(3^-2)NEED STEP BY STEP EXPLANATION TO MARK AS BRILIENTIST ANSWER
Answer» Step-by-step EXPLANATION: i THINK this will be ANSWER but not SURE

27.

Find the value of 1/(3^-2)NEED STEP BY STEP EXPLANATION TO MARK AS BRILIENTIST ANSWER

Answer»

Step-by-step EXPLANATION:

i THINK this will be ANSWER but not SURE

Discussion

28.	(2x+3y)2
Answer» ANSWER: ${2x + 3y}^{2} =4 {x}^{2} + 9 {y}^{2} + 12xy$

28.

(2x+3y)2

Answer»

ANSWER:

${2x + 3y}^{2} =4 {x}^{2} + 9 {y}^{2} + 12xy$

Discussion

29.	Using log x* = n log x expand the following(1) log, 72Note : log x=x = logoX
Answer» ANSWER: logXⁿ=nlogX log72 =log(36×2) =log36+log2 =log6²+log2 =2log6+log2 =2log(3×2)+log2 =2log3+2log2+log2 =2log3+3log2

29.

Using log x* = n log x expand the following(1) log, 72Note : log x=x = logoX

Answer»

ANSWER:

logXⁿ=nlogX

log72

=log(36×2)

=log36+log2

=log6²+log2

=2log6+log2

=2log(3×2)+log2

=2log3+2log2+log2

=2log3+3log2

Discussion

30.	A Mobil cost 8000 at the rate of 5%in 2 years
Answer» ANSWER: SEND FULL QUESTION. SORRY

30.

A Mobil cost 8000 at the rate of 5%in 2 years

Answer»

ANSWER:

SEND FULL QUESTION. SORRY

Discussion

31.	At which point do the line 2x+3y=12 meets on y axisat y=4at y=6at y=3at y=none
Answer» At y=none HOPE you LIKED it THANK you

Discussion

32.	1/-2√3 rationalizing the denominator of the following
Answer» PLS MARK as BRAINLIEST ANSWER

Discussion

33.	Solve the following pair of linear equations 1by 2(3x+y) - 1 by 2(3x-y)= -1by8 and 1 by 3x+y + 1 by 3x-y =3/4
Answer» ANSWER: don't KNOW SORRY sorry sorry sorry sorry sorry sorry

33.

Solve the following pair of linear equations 1by 2(3x+y) - 1 by 2(3x-y)= -1by8 and 1 by 3x+y + 1 by 3x-y =3/4

Answer»

ANSWER:

don't KNOW SORRY sorry sorry sorry sorry sorry sorry

Discussion

34.	213durDraw the graphs of the given polynomial and find the zeroes. Justify the answers.(i) p(x) = x - x - 12 (ii) p(x) = x2 - 6x + 9(iii) p(x) = x2 - 4x + 5 (iv) p(x) = x2 + 3x - 4(v) p(x) = x2 - 1
Answer» ANSWER: MARK me as BRAINLEST PLEASE hjdjndkd

34.

213durDraw the graphs of the given polynomial and find the zeroes. Justify the answers.(i) p(x) = x - x - 12 (ii) p(x) = x2 - 6x + 9(iii) p(x) = x2 - 4x + 5 (iv) p(x) = x2 + 3x - 4(v) p(x) = x2 - 1

Answer»

ANSWER:

MARK me as BRAINLEST PLEASE hjdjndkd

Discussion

35.	Meera bought two cows for Rs 10000. If she sold one at a loss of 30% and other at a profit of 30% and then she found that each cow was sold for the same price, find the percentage of profit or loss in whole transaction.
Answer» ANSWER: she doesn't have any PROFIT and LOSE ok pls MARK me as brainlaist

35.

Meera bought two cows for Rs 10000. If she sold one at a loss of 30% and other at a profit of 30% and then she found that each cow was sold for the same price, find the percentage of profit or loss in whole transaction.

Answer»

ANSWER:

she doesn't have any PROFIT and LOSE ok

pls MARK me as brainlaist

Discussion

36.	-11+15-35+53 please step by step guys
Answer» ANSWER: -11+15-35+53 =15+53-11-35 =68-46 =22 plz MARK as BRAINLEAST

36.

-11+15-35+53 please step by step guys

Answer»

ANSWER:

-11+15-35+53

=15+53-11-35

=68-46

=22

plz MARK as BRAINLEAST

Discussion

37.	Please Answer, Express The Following Numbers As The Sum Of Consecutive Odd Numbers. 5³ ,6³ ,9³ Give Only Correct Answer Don't Take Free Points.Can Give Direct Answers
Answer» Step-by-step explanation: 5³ = (1 + 1 + 3)³ 6³ = (1 + 1 + 1 + 3)³ 9³ = (1 + 3 +5)³

37.

Please Answer, Express The Following Numbers As The Sum Of Consecutive Odd Numbers. 5³ ,6³ ,9³ Give Only Correct Answer Don't Take Free Points.Can Give Direct Answers

Answer»

Step-by-step explanation:

5³ = (1 + 1 + 3)³

6³ = (1 + 1 + 1 + 3)³

9³ = (1 + 3 +5)³

Discussion

38.	Please help me urgent.help me
Answer» Step-by-step EXPLANATION: $\huge\underline\mathfrak{Answer}$ $1) {9x}^{2} + 12xy + {4y}^{2}$ $= {(3x)}^{2} + 2(2x)(3y) + {(4y)}^{2}$ $= {(3x + 4y)}^{2}$ $2) {16x}^{2} + 8y + {y}^{2}$ $= {(4x)}^{2} + 2(4x)(y) + {(y)}^{2}$ $= {(4x + y)}^{2}$ $3) {16x }^{2} - 8xy + {y}^{2}$ $= {(4x)}^{2} - 2(4x)(y) + {(y)}^{2}$ $= {(4x - y)}^{2}$ HOPE IT HELPS... PLEASE MARK AS BRAINLIEST

38.

Please help me urgent.help me

Answer»

Step-by-step EXPLANATION:

$\huge\underline\mathfrak{Answer}$

$1) {9x}^{2} + 12xy + {4y}^{2}$

$= {(3x)}^{2} + 2(2x)(3y) + {(4y)}^{2}$

$= {(3x + 4y)}^{2}$

$2) {16x}^{2} + 8y + {y}^{2}$

$= {(4x)}^{2} + 2(4x)(y) + {(y)}^{2}$

$= {(4x + y)}^{2}$

$3) {16x }^{2} - 8xy + {y}^{2}$

$= {(4x)}^{2} - 2(4x)(y) + {(y)}^{2}$

$= {(4x - y)}^{2}$

HOPE IT HELPS...

PLEASE MARK AS BRAINLIEST

Discussion

39.	Which is the LCM of25 and 23
Answer» 25*23=575 it is the LCM of 25 and 23

39.

Which is the LCM of25 and 23

Answer»

25*23=575

it is the LCM of 25 and 23

Discussion

40.	The price of a TV was reduced from $2,000 to $1,750. What is the discount allowed?
Answer» hellllllllooooooooolooo

Discussion

41.	Reduce to the standard form 56/64
Answer» Answer: 56/64 =0.875 plz MARK as BRAINLEAST

41.

Reduce to the standard form 56/64

Answer»

Answer:

56/64

=0.875

plz MARK as BRAINLEAST

Discussion

42.	If a car requires 5 liters fuel on day 1 of the journey and 10 liters fuel on day 2, then, what is the average fuel consumption of the car overthe two days' journey?
Answer» Answer: 90 LITERS per DAY ok please MARK me BRILLIANT ok

42.

If a car requires 5 liters fuel on day 1 of the journey and 10 liters fuel on day 2, then, what is the average fuel consumption of the car overthe two days' journey?

Answer»

Answer:

90 LITERS per DAY ok

please MARK me BRILLIANT ok

Discussion

43.	Which identity is known as the conditional identity? No copying
Answer» ANSWER: IDENTITY and conditional equations are ways in which numbers associate with each other. When an equation is true for every VALUE of the variable, then the equation is called an identity equation. ... For example, 6x = 12 is conditional because it is false when X = 3 (and any number other than 2). Step-by-step explanation:

43.

Which identity is known as the conditional identity? No copying

Answer»

ANSWER:

IDENTITY and conditional equations are ways in which numbers associate with each other. When an equation is true for every VALUE of the variable, then the equation is called an identity equation. ... For example, 6x = 12 is conditional because it is false when X = 3 (and any number other than 2).

Step-by-step explanation:

Discussion

44.	The average weight of a class of 24 students is 30kg. When the weight of the teacher is also included, the average weight increases by Tkg.What is the weight of the teacher?
Answer» Step-by-step explanation: X/24 = 30, average of class STUDENTS WEIGHT X = 720 (720 + y) /25 = 31, average of class students and teacher weight 720 + y = 775 y = 775 - 720 y = 55 Weight of the teacher is 55kg

44.

The average weight of a class of 24 students is 30kg. When the weight of the teacher is also included, the average weight increases by Tkg.What is the weight of the teacher?

Answer»

Step-by-step explanation:

X/24 = 30, average of class STUDENTS WEIGHT

X = 720

(720 + y) /25 = 31, average of class students and teacher weight

720 + y = 775

y = 775 - 720

y = 55

Weight of the teacher is 55kg

Discussion

45.	Find the discrimiant of the equation x^-11x+30 and hence find the nature of its root.
Answer» if you LIKED the ANS do MARK as BRAINLIEST

Discussion

46.	Find (x+y)^2/xy +(y+z)^2/yz(zx)^2/zx if x3+y3+z3=3xyz and x+y+z=0
Answer» Answer $\underbrace{\overbrace{ \orange{ \sf{ \dfrac{ {(<klux>X</klux> + y)}^{2} }{xy} + \dfrac{ {(y + <klux>Z</klux>)}^{2} }{yz} + \dfrac{ {(z + x)}^{2} }{xz} = 3 }}}}$ Given $\red{ \bigstar} \: \sf{x + y + z = 0}$ $\red{ \bigstar} \: \sf{ {x}^{3} + {y}^{3} + {z}^{3} = 3 \: xyz }$ To find $\red{ \bigstar} \: \sf{ \dfrac{ {(x + y)}^{2} }{xy} + \dfrac{ {(y + z)}^{2} }{yz} + \dfrac{ {(z + x)}^{2} }{xz} }$ Solution As GIVEN $\red{\implies }\sf{ {x}^{3} + {y}^{3} + {z}^{3} = 3 \: xyz }$ dividing by xyz both sides $\red{\implies} \sf{ \dfrac{ {x}^{3} }{xyz} + \dfrac{ {y}^{3} }{xyz} + \dfrac{ {z}^{3} }{xyz} = \dfrac{3 \: xyz}{xyz} }$ $\red{\implies} \sf{ \dfrac{ {x}^{2} }{yz} + \dfrac{ {y}^{2} }{xz} + \dfrac{ {z}^{2} }{xy} = 3}$ since, x + y + z = 0 therefore, x = - (y + z) y = - (z + x) z = - (x + y) so, $\red{ \implies} \sf{ \dfrac{ {( -( y + z))}^{2} }{yz} + \dfrac{ {( - (x + z))}^{2} }{xz} + \dfrac{ {( - (x + y))}^{2} }{xy} = 3 }$ $\red{ \implies} \sf{ \dfrac{ {(y + z)}^{2} }{yz} + \dfrac{ {(x + z)}^{2} }{xz} + \dfrac{ {(x + y)}^{2} }{xy} = 3}$ $\boxed{ \boxed{ \red{ \implies \: \sf{ \dfrac{ {(x + y)}^{2} }{xy} + \dfrac{ {(y + z)}^{2} }{yz} + \dfrac{ {(z + x)}^{2} }{xz} = 3 }}}} \huge{\dagger}$ Answer.

46.

Find (x+y)^2/xy +(y+z)^2/yz(zx)^2/zx if x3+y3+z3=3xyz and x+y+z=0

Answer»

Answer

$\underbrace{\overbrace{ \orange{ \sf{ \dfrac{ {(<klux>X</klux> + y)}^{2} }{xy} + \dfrac{ {(y + <klux>Z</klux>)}^{2} }{yz} + \dfrac{ {(z + x)}^{2} }{xz} = 3 }}}}$

Given

$\red{ \bigstar} \: \sf{x + y + z = 0}$

$\red{ \bigstar} \: \sf{ {x}^{3} + {y}^{3} + {z}^{3} = 3 \: xyz }$

To find

$\red{ \bigstar} \: \sf{ \dfrac{ {(x + y)}^{2} }{xy} + \dfrac{ {(y + z)}^{2} }{yz} + \dfrac{ {(z + x)}^{2} }{xz} }$

Solution

As GIVEN

$\red{\implies }\sf{ {x}^{3} + {y}^{3} + {z}^{3} = 3 \: xyz }$

dividing by xyz both sides

$\red{\implies} \sf{ \dfrac{ {x}^{3} }{xyz} + \dfrac{ {y}^{3} }{xyz} + \dfrac{ {z}^{3} }{xyz} = \dfrac{3 \: xyz}{xyz} }$

$\red{\implies} \sf{ \dfrac{ {x}^{2} }{yz} + \dfrac{ {y}^{2} }{xz} + \dfrac{ {z}^{2} }{xy} = 3}$

since,

x + y + z = 0

therefore,

x = - (y + z)

y = - (z + x)

z = - (x + y)

so,

$\red{ \implies} \sf{ \dfrac{ {( -( y + z))}^{2} }{yz} + \dfrac{ {( - (x + z))}^{2} }{xz} + \dfrac{ {( - (x + y))}^{2} }{xy} = 3 }$

$\red{ \implies} \sf{ \dfrac{ {(y + z)}^{2} }{yz} + \dfrac{ {(x + z)}^{2} }{xz} + \dfrac{ {(x + y)}^{2} }{xy} = 3}$

$\boxed{ \boxed{ \red{ \implies \: \sf{ \dfrac{ {(x + y)}^{2} }{xy} + \dfrac{ {(y + z)}^{2} }{yz} + \dfrac{ {(z + x)}^{2} }{xz} = 3 }}}} \huge{\dagger}$

Answer.

Discussion

47.	Solve the following pair of linear equations 1by 2(3x+y) - 1 by 2(3x-y)= -1by8
Answer» GOOD evening SORRY DEAR don't know so sorry

47.

Solve the following pair of linear equations 1by 2(3x+y) - 1 by 2(3x-y)= -1by8

Answer»

GOOD evening

SORRY DEAR don't know

so sorry

Discussion

48.	Express 45°20'10" in Radian measure.
Answer» Answer: 45°20'10" = 0.79 RAD.

48.

Express 45°20'10" in Radian measure.

Answer»

Answer:

45°20'10" = 0.79 RAD.

Discussion

49.	Find the number of odd integers between 2 and 100 divisible by 3
Answer» Answer: THE NO. OF ODD INTEGERS BETWEEN 2 AND 100 DIVISIBLE BY 3 = QUOTIENT OF 100÷(3×2)+1=16+1=17

49.

Find the number of odd integers between 2 and 100 divisible by 3

Answer»

Answer:

THE NO. OF ODD INTEGERS BETWEEN 2 AND 100 DIVISIBLE BY 3 = QUOTIENT OF 100÷(3×2)+1=16+1=17

Discussion

50.	Preeti ate 2/3 of a cake and Anu ate 4/13 of the same cake how much cake was eaten
Answer» Answer: 38/39 Step-by-step explanation: 2/3+ 4/13 =>(26+12) /39 = 38/39

50.

Preeti ate 2/3 of a cake and Anu ate 4/13 of the same cake how much cake was eaten

Answer»

Answer:

38/39

Step-by-step explanation:

2/3+ 4/13

=>(26+12) /39

= 38/39

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